One method is invasive ventilation. A second method involves blowing oxygen into the lungs through a mask.
一种方法是有创通气。第二种方法是通过面罩将氧气吹入肺部。
The experiments show that this method refining silicon metal by oxygen bottom blowing is feasible both in technology and in economy.
试验表明，氧气底吹精炼工业硅的方法在技术上和经济上都是可行的。
A converter control system for adding material and top blowing oxygen gas has been developed with the method of artificial intelligent static model.
本文采用静智能态模型控制方法建立了转炉自动加料和自动吹氧的控制系统。
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